Intermec CN2B Bedienungsanleitung PDF herunterladen (Seite 180)

Chapter 7 — Programming

162 CN2B Mobile Computer User’s Manual

within their application. The routines provided also reads/writes values to

the CE registry pertaining to the 802.11b/g radio driver. By using the pro-

vided functions, a programmer can alter the 802.11b/g parameters of Net-

work Name (SSID), WEP keys, infrastructure modes, radio channel, and

power management modes. A programmer can also retrieve network con-

nect status and signal strength indication from the RF network card.

The API is contained within the 80211API.DLL file that should be present

in any load with the 802.11b/g networking installed.

NETWLAN.DLL

PRISMNDS.DLL

This is the 802.11b/g driver. It is present in all CN2B CE loads that use the 802.11b/g net-

work interface card.

80211API.DLL This file is an Intermec authored file that provides the programmer with a set of API calls to

configure or monitor status of the 802.11b/g network.

80211CONF.EXE This is the “Control Panel” for configuring the 802.11b/g network parameters. Note that it is

an EXE file and is actually called by CPL802.CPL (see below).

CPL802.CPL A control panel application that does nothing but call 80211CONF.EXE.

80211SCAN.EXE Internally manages the Scan List activity.

802PM.DLL This handles profile management for radio configurable values.

URODDSVC.EXE This handles radio configuration and security authentication based on a selected profile.

The Profile Manager supports up to four radio configuration profiles.

These profiles are the same as those set by the Wireless Network applet that

runs on the Windows CE unit. You can configure different 802.11b/g pro-

files and switch between them using the 802.11 API. See the ConfigurePro-

file() function on page 176 for more information.

Basic Connect/Disconnect Functions

These functions are available when using the 802.11b/g radio module.

RadioConnect()

Connects to the available radio. Use this function if you plan on using a lot

of API calls that talk directly to the radio. Note that the 802.11b/g radio

must be enabled via NDISTRAY before you can connect to it.

Syntax UINT RadioConnect( );

Parameters None

Return Values ERROR_SUCCESS when successful, otherwise ERR_CONNECT_FAILED

Remarks Call this function before calling other functions found within this API. It hunts out and connects to

the 802.11b/g radio available on the system. Check extended error codes if anything else is returned.

Definitions #ifdef DYNAMIC_LOADING

typedef UINT (*PFN_RadioConnect)();

#else

UINT RadioConnect();

#endif

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